When a crash kills their father and leaves them orphaned, Zel knows she needs to protect her sister, Dyl. But before Zel has a plan, Dyl is taken by strangers using bizarre sensory weapons, and Zel finds herself in a safe house for teens who aren’t like any she’s ever seen before—teens who shouldn’t even exist. Using broken-down technology, her new friends’ peculiar gifts, and her own grit, Zel must find a way to get her sister back from the kidnappers who think a powerful secret is encoded in Dyl’s DNA. Set in 2150—in a world of automatic cars, nightclubs with auditory ecstasy drugs, and guys with four arms—this is about the human genetic “mistakes” that society wants to forget, and the way that outcasts can turn out to be heroes.

In the past year Zel lost her father, the boy she loves, her safety, and any future she might have imagined for herself. Now she, her sister, and the band of genetic outcasts they've come to call their family are forced on the run when their safe house is attacked by men with neural guns. But on the way to a rumored haven in Chicago, Zel hears something—a whisper from Cy, the boy who traded himself for her sister's safety. And when she veers off plan in order to search for him, what she finds is not what she expected. There's more to their genetic mutations than they ever imagined...aspects that make them wonder if they might be accepted by the outside world after all.